Who is the best hero in Overwatch on Oasis for Master players?

Shion currently leads with a 53.7% win rate and 45.8% pick rate on Oasis. Anran and D.Va round out the top 3.

Which heroes are S-tier heroes in Overwatch in Master on Oasis?

S-tier on Oasis: Shion, Anran, D.Va, Kiriko.

How is this Overwatch tier list calculated?

Heroes are scored from a weighted blend of win rate (70%) and pick rate (30%) across competitive matches in Master ranks, with a minimum pick rate of 0.5% to filter out off-meta noise. S/A/B/C/D cutoffs are percentile-based across the resulting score distribution.

How often is the tier list updated?

Daily. The current snapshot covers competitive matches from 2026-06-17 to 2026-07-16 (30-day rolling window).

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Overwatch Master Tier List on Oasis (30-day)

Auto-generated Overwatch tier list on Oasis for Master players, derived from a 30-day window of competitive play. Win-rate and pick-rate weighted, refreshed daily.

Last updated Thu, 16 Jul 2026 13:07:10 GMT · data window 2026-06-17 → 2026-07-16

In Master competitive Overwatch on Oasis, the current S-tier picks are Shion, Anran, D.Va and Kiriko. Rankings combine win rate and pick rate over a 30-day window of ranked play, refreshed daily.

Map

Shion53.7% WR · 45.8% PR · 14.2% BR

Anran56.7% WR · 6.0% PR · 3.4% BR

D.Va55.2% WR · 6.9% PR · 51.5% BR

Kiriko49.1% WR · 45.5% PR · 5.3% BR

Mizuki52.9% WR · 18.9% PR · 14.7% BR

Moira53.0% WR · 16.4% PR · 1.4% BR

Ashe54.3% WR · 5.1% PR · 1.1% BR

Cassidy50.2% WR · 32.7% PR · 17.8% BR

Mei54.1% WR · 4.6% PR · 1.8% BR

Pharah54.0% WR · 3.6% PR · 11.4% BR

Zenyatta52.9% WR · 8.3% PR · 4.0% BR

Mercy52.4% WR · 11.7% PR · 20.6% BR

Sigma52.7% WR · 7.4% PR · 4.8% BR

Mauga52.3% WR · 8.7% PR · 41.5% BR

Baptiste51.6% WR · 13.2% PR · 1.0% BR

Soldier: 7650.6% WR · 16.4% PR · 1.5% BR

Tracer50.5% WR · 16.6% PR · 23.4% BR

Genji50.9% WR · 12.4% PR · 1.6% BR

Reinhardt51.5% WR · 8.0% PR · 1.3% BR

Wuyang51.5% WR · 8.1% PR · 3.0% BR

Juno50.1% WR · 14.8% PR · 0.2% BR

Torbjörn51.6% WR · 2.3% PR · 0.3% BR

Junker Queen51.4% WR · 4.0% PR · 0.1% BR

Illari50.8% WR · 6.6% PR · 1.6% BR

Zarya50.6% WR · 6.7% PR · 22.5% BR

Venture51.0% WR · 1.8% PR · 0.3% BR

Roadhog50.0% WR · 8.4% PR · 10.5% BR

Domina50.6% WR · 2.4% PR · 1.6% BR

Doomfist49.3% WR · 11.3% PR · 8.8% BR

Orisa48.9% WR · 12.0% PR · 21.3% BR

Jetpack-Cat49.8% WR · 4.9% PR · 8.3% BR

Brigitte49.0% WR · 10.2% PR · 1.6% BR

Lifeweaver49.4% WR · 7.0% PR · 0.7% BR

Lúcio49.2% WR · 6.9% PR · 0.4% BR

Hazard49.0% WR · 8.3% PR · 13.3% BR

Symmetra49.7% WR · 2.1% PR · 3.6% BR

Ana45.6% WR · 28.4% PR · 11.1% BR

Winston48.6% WR · 7.5% PR · 1.9% BR

Junkrat49.2% WR · 2.3% PR · 0.6% BR

Bastion48.5% WR · 6.4% PR · 7.3% BR

Hanzo48.6% WR · 3.8% PR · 0.6% BR

Reaper47.2% WR · 11.4% PR · 7.7% BR

Ramattra48.4% WR · 3.6% PR · 2.0% BR

Emre47.7% WR · 4.6% PR · 1.0% BR

Sierra47.3% WR · 3.5% PR · 3.8% BR

Wrecking Ball46.5% WR · 6.4% PR · 6.5% BR

Echo46.7% WR · 3.3% PR · 0.4% BR

Sojourn44.2% WR · 11.4% PR · 1.7% BR

Sombra45.2% WR · 3.5% PR · 24.0% BR

Freja44.9% WR · 1.6% PR · 1.3% BR

Vendetta43.7% WR · 1.7% PR · 0.5% BR

Widowmaker38.1% WR · 1.4% PR · 3.6% BR

How tiers are computed

Pick-rate-weighted win rate and average pick rate are z-scored within this slice. Composite score = 0.7 * z(win_rate) + 0.3 * z(pick_rate). Heroes are sorted by score and bucketed by score percentile.

Pick-rate floor: heroes below 0.5% pick rate in the slice are excluded.
Score weights: 0.7 × z(win rate) + 0.3 × z(pick rate).
Tier cutoffs (by score percentile, of 52 eligible heroes): S = top 8% · A = top 17% · B = top 25% · C = top 25% · D = top 25%.

FREQUENTLY ASKED

Who is the best hero in Overwatch on Oasis for Master players?: Shion currently leads with a 53.7% win rate and 45.8% pick rate on Oasis. Anran and D.Va round out the top 3.
Which heroes are S-tier heroes in Overwatch in Master on Oasis?: S-tier on Oasis: Shion, Anran, D.Va, Kiriko.
How is this Overwatch tier list calculated?: Heroes are scored from a weighted blend of win rate (70%) and pick rate (30%) across competitive matches in Master ranks, with a minimum pick rate of 0.5% to filter out off-meta noise. S/A/B/C/D cutoffs are percentile-based across the resulting score distribution.
How often is the tier list updated?: Daily. The current snapshot covers competitive matches from 2026-06-17 to 2026-07-16 (30-day rolling window).

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